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Tetracaine is a topical anesthetic eye drop used to numb the surface of the eye for a short time. It is used before eye exams or procedures that require brief corneal anesthesia. Tetracaine does not treat the cause of eye pain, redness, infection, or injury. It is meant for use under the direct supervision of a healthcare professional.
read more about tetracaine ...Tetracaine blocks nerve signals in the cornea and nearby eye surface tissues. This reduces pain sensation for a short period. The effect starts quickly, which makes it useful before brief procedures. Because it only numbs the eye surface, it should not be treated as a cure for eye symptoms.
Tetracaine can be used before procedures that need rapid, short-acting topical anesthesia. Eye care professionals can use it before tonometry, foreign body removal, corneal scraping, or other minor surface procedures. It can also help during diagnostic steps that would otherwise feel uncomfortable. The clinician decides whether tetracaine is appropriate based on the eye problem and procedure.
Repeated use of tetracaine can damage the cornea and slow healing. It can hide worsening pain from an abrasion, infection, ulcer, or other eye injury. Serious corneal problems, including scarring and vision loss, have been linked with misuse of topical anesthetic drops. Patients should not use tetracaine outside the directions of a healthcare professional.
Tetracaine can cause temporary burning, stinging, redness, tearing, or blurred vision. A numb eye can be scratched more easily because normal protective sensation is reduced. Avoid rubbing the eye until feeling returns. Call an eye doctor quickly for severe pain, worsening redness, discharge, light sensitivity, or reduced vision after use.
No, tetracaine and proparacaine are different topical anesthetic eye drops. Both can numb the eye surface for short procedures, but the clinician chooses the best option for the situation.
A clinician can use tetracaine during an exam for a scratched eye, but it is not meant for unsupervised home use. Repeated use can slow healing and increase the risk of corneal injury.
Tetracaine works quickly and is short acting. The exact duration depends on dose, eye surface condition, and the procedure being done.
Yes, repeated or unsupervised tetracaine use can damage the cornea and threaten vision. It should be used only under professional direction.
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Tetracaine Hydrochloride Ophthalmic Solution 0.5%. U.S. Food & Drug Administration. https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208135s000lbl.pdf. Date Accessed June 3, 2026.
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